Window latching device



Sept. 15, 1931. J. H. SHEARD ET AL ,1

WINDOW LATCHING DEVICE Filed June 5, 1928 I N VEN TOR JosepfiHAS/2611121182 Hafiz ,5: Geffy; TTORNEYS.

Patented Sept. 15, 1931 UNITED STATES", PATENT orrice JOSEPH H. SHEARIDAND HARRY S. GETTY, OF PHILADELPHIA, SIGN ORS TO DAVID LUPTONS SONSCOMPANY, OF PI-IILADE A CORPORATION OF PENNSYLVANIA WINDOW LATCHIN GDEVICE Application filed June 5, 1928.

This invention relates to latching devices for windows, moreparticularly to latching devices useful with pivoted or casementwindows.

In latching devices heretofore designed for windows of the specific kindreferred to, operation was effected by actuating members fulcrumed toswing in a plane parallel to the sashes. The manipulation of the sashesunder this condition of operation was more or less awkward and oftenrequired considerable physical exertion to latch and unlatch them,particularly with regard to assurance of weather tightness in closedposition.

Our invention is in part directed toward overcoming the indicateddifficulty, which desideratum we attain through provision of a novellatching device wherein the actuating member is swingable in thedirection of sash movement, or in other words, perpendicularly to theplane of the sash.

In connection with a latching device embodying the above notedattribute, we further aim to secure the advantages accruing tosimplified construction and operation.

Still further objects and attendant advantages will be manifest from thedetailed description hereinafter when taken in connection with thedrawings, whereof Fig. I shows a cross sectional view of a pivoted orcasement window equipped with our improved latching device.

Fig. II is a perspective View of the device with fragments of themeeting rails of the Window frame and sash to which its component partsare secured; and,

Fig. III is an end view of the locking device.

As herein depicted, the device comprises a bracket member 10 adapted tobe secured by screws or other convenient fastening means 11 to theinside of the swinging rail R of the pivoted or casement window sash S,which, as shown in Fig. I, is hinged at H to the stationary frame F. Thebracket member 10 has spaced lateral projections 12, 13 with alignedopenings 14,15 to guide a sliding latch bolt 16, the projection 13 beingextended somewhat beyond its companion PENNSYLVANIA, AS-

LPHIA, FENNSYLVANIA,

Serial No. 283,005.

From the fulcrum boss 19 of this actuating member 18 extends a sectoralwing 20 that provides a spiral cam edge 21 for engaging a transversenotch 22 in the outer side of the bolt 16, said wing 20 havingoppositely projecting end lugs 23 the bolt 16 to 24 that co-operate withlimit up and down swinging movement of the handle 18. The forward end ofthe latch bol t 16 is slightly beveled, as

at 25, for wedge action with a counter-beveled keeper 26 secured to thatjamb rail J of the frame F against which the swinging rail R of the pivoted sash S closes, all as clearly shown in Figs. I and II.

With the described arrangement it will be apparent that as the actuatinghandle 18 is lifted, the spiral-ize d cam Wing 20 causes retraction ofthe latch bolt 16 into the bracket 10 until the keepe r 26 is entirelycleared,

whereupon the sash S can be swung outward to open position. Locking ofthe sash S is effected conversely,

that is to say: through depression of the actuating handle 18, suchmovement of the latter being attended by PIOJQCtlOIl of the latch bolt16 relative to the bracket 10 through reverse influence of the wing cam21. In this connection it is to be particularly noted that by virtue ofthe wedge action between the bevel 25 of the bolt 16 and the counterbevel. of the keeper 26, the sash S is securely clamped in closedposition with the rail R ly with the jamb weather tightness.

contacting effectiverail J as required for It 1s to be further remarkedthat the operating movement of the actuating member both latching andsash S. In other of sash movement 18 is a natural one for unlatching thewindow words: the operative m0- tlon of the member 18 follows thedirection,

during opening and closing rather than being at right angles thereto aswas ordinarily avallable latching the case with heretofore devices forpivoted windows, so that the sash S is readily latched or unlatchedwithout exertion. The han entailing undue physical dle 18 can, ofcourse, be

given any desired configuration in keeping with the design orarchitecture of the window wherewith it is to be used, it being hereinexemplified as rounded somewhat and directed away from the sash edge forconvenience of grasping and preclusion of the possibility of injury tothe hand in manipulating the window.

Having thus described our invention, we claim:

1. A latching device for pivoted windows comprising a bracket embodyingspaced lateral projections of diiiering size, a latch bolt slidinglyguided by said bracket projections, and an actuating member fulcrumed tothe larger of said projections and adapted to follow the movement, saidactuating member embodying a spiral cam co-operative with the latchbolt.

2. A latching device for pivoted windows comprising a bracket memberwith unequal lateral projections and adapted for attachment to the siderail of the movable window sash, a latch bolt slidingly guided by saidbracket projections, an actuator member fulcrumed to the larger of saidbracket projections and adapted to swing in the direction of sashmovement, said actuator member embodying a sectoral wing with a spiralcam edge engaging a transverse notch in the slide bolt, andmovement-limiting stops at the termini of said cam edge. v

3. A latching device for pivoted windows comprising a bracket memberwith unequal spaced lateral projections for attachment to the side railof the window sash, a latch bolt slidingly guided by said bracketprojections, an actuator member fulcrumed to the larger of said bracketprojections and adapted to swing in the direction of sash movement, saidactuator member embodying a sectoral wing with a spiral cam edgeengaging a transverse notch in the latch bolt, and oppositely projectingend lugs for co-operation with the bolt in limiting movement of theactuator member.

4. As an article of manufacture an actuator for latching devices, of thetype described, embodying a boss having a lateral manipulator member andan integral sectoral wing about said boss with a spiral cam edgeterminating in stop projections.

In testimony whereof, we have hereunto signed our names, atPhiladelphia, Pennsyl- Vania, this 31st day of May, 1928.

. JOSEPH H. SHEARD, HARRY S. GETTY.

direction of sash

